In January, it was reported that Microsoft's Bing internet search service had finally made the big move to go past Yahoo to become the second most popular search engine in the US. Now it looks like Microsoft is pulling ahead of Yahoo while Google still remains on top.

Business Insider reports that, according to ComScore, Bing had 15.3 percent of the internet search market in the US in February, compared to 15.2 percent in January. Yahoo, on the other hand, only had 13.8 percent of the market in February, compared to 14.1 percent in January.

Even with this modest gain, Bing is still well behind Google. ComScore says that it controlled 66.4 percent of the search market in February, compared to 66.2 percent in January.

Microsoft is still in the middle of a 10 year deal with Yahoo to provide the majority of the web site's search technology. If you combine Bing's numbers with Yahoo in February it means that Microsoft's search engine technology now controls 29.1 percent of US search results.

ComScore's numbers are based on web traffic only. It does not take into account searching via mobile platforms which is estimated to account for roughly 15 percent of all internet searches.